Grain-scale supercharging and breakdown on airless regoliths

Airless Spray Systems

ITCZ Breakdown and Its Upscale Impact on the Planetary-Scale

1 ABSTRACT 2 The Intertropical Convergence Zone (ITCZ) over the eastern Pacific is sometimes observed to break down into several vortices on the synoptic time scale. It is still a challenge for present-day numerical models to simulate the ITCZ breakdown in the baroclinic modes. Also, the upscale impact of the associated mesoscale fluctuations on the planetary-scale circulation is not well under...

Simulating regoliths in microgravity

Despite their very low surface gravities, the surfaces of asteroids and comets are covered by granular materials regolith that can range from a fine dust to a gravellike structure of varying depths. Understanding the dynamics of granular materials is, therefore, vital for the interpretation of the surface geology of these small bodies and is also critical for the design and/or operations of any...

Cascading Breakdown on Weighted Scale-Free Complex Networks

Cascading breakdown on complex networks has attracted much attention in recent years since people have realized the great danger brought by cascading failures in real life networks. In this study we propose a simple model describing cascading breakdown generated by the redistribution of packet loads by congested links on weighted scale-free networks. A collapsed link, which has lost its functio...

Breakdown points of Cauchy regression-scale estimators

The lower bounds for the explosion and implosion breakdown points of the simultaneous Cauchy M-estimator (Cauchy MLE) of the regression and scale parameters are derived. For appropriate tuning constants, the breakdown point attains the maximum possible value.